My husband was a buyer with Sears, he's now retired. I had the opportunity to tour the Kellwood factory where they make, or made not sure if they're still in business, quilts and comforters. They put the fabric on a frame and a machine does all the sewing and stitching. It take about half an hour, give or take a few minutes, to do one quilt.
If you want something custom, that's what it is custom, and everything custom costs more. I don't sew for the public any more.